并非所有mapbox.com的服务在中国提供
使用 events 和 feature states 来针对各要素创建悬停效果。
<!DOCTYPE html><html><head><meta charset='utf-8' /><title>创建悬停效果</title><meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /><script src='https://api.tiles.mapbox.com/mapbox-gl-js/v1.1.1/mapbox-gl.js'></script><link href='https://api.tiles.mapbox.com/mapbox-gl-js/v1.1.1/mapbox-gl.css' rel='stylesheet' /><style>body { margin:0; padding:0; }#map { position:absolute; top:0; bottom:0; width:100%; }</style></head><body> <div id='map'></div><script>mapboxgl.accessToken = '<your access token here>';var map = new mapboxgl.Map({container: 'map',style: 'mapbox://styles/mapbox/streets-v11',center: [-100.486052, 37.830348],zoom: 2});var hoveredStateId = null; map.on('load', function () {map.addSource("states", {"type": "geojson","data": "https://docs.mapbox.com/mapbox-gl-js/assets/us_states.geojson"}); // The feature-state dependent fill-opacity expression will render the hover effect// when a feature's hover state is set to true.map.addLayer({"id": "state-fills","type": "fill","source": "states","layout": {},"paint": {"fill-color": "#627BC1","fill-opacity": ["case",["boolean", ["feature-state", "hover"], false],1,0.5]}}); map.addLayer({"id": "state-borders","type": "line","source": "states","layout": {},"paint": {"line-color": "#627BC1","line-width": 2}}); // When the user moves their mouse over the state-fill layer, we'll update the// feature state for the feature under the mouse.map.on("mousemove", "state-fills", function(e) {if (e.features.length > 0) {if (hoveredStateId) {map.setFeatureState({source: 'states', id: hoveredStateId}, { hover: false});}hoveredStateId = e.features[0].id;map.setFeatureState({source: 'states', id: hoveredStateId}, { hover: true});}}); // When the mouse leaves the state-fill layer, update the feature state of the// previously hovered feature.map.on("mouseleave", "state-fills", function() {if (hoveredStateId) {map.setFeatureState({source: 'states', id: hoveredStateId}, { hover: false});}hoveredStateId = null;});});</script> </body></html>